1898-1902. No. 21.| LICHENS. 47 
Pyrenocarpi. 
Verrucaria Prrs. 
Verrucaria aethiobola Wnsc. — Nyw. Scand. p. 272. — Greenl. — 
Over rocks. 
Verrucaria ceuthocarpa Wwesc. — Tu. Fr. Arct. p. 269. — Greenl., 
Spitsb. — On rocks. 
Verrucaria epigaea Aca. — Leight. Ang. p. 64. — Green]. — Over 
earth. — E. P.S.N. King Oscar Land, Goosefjord (45). 
Verrucaria extrema Tx. Fr. — Ta. Fr. Spitsb. 50. — Spitsb. — 
On stone. 
Verrucaria margacea Wnec. — Tu. Fr. Aret. p. 269. — Spitsb. 
Icel. — On stone. 
Verrucaria maura (Vant) Nyt. — Tu. Fr. Arct. p. 268. — Greenl., 
Spitsb., Icel. — On stone. 
Verrucaria mucosa Wnec. — Tu. Fr. Arct. p. 269. — Greenl., Icel. 
— On rocks. 
Verrucaria nigrescens Pers. — Tu. Fr. Arct. p. 267. — Icel. — On 
rocks. — E. P.S. N. King Oscar Land, Goosefjord (42). 
Verrucaria phaeothelena Tu. Fr. — Tu. Fr. Engl. Pol. Ex. p.366.— 
Am.— On stone. 
Verrucaria rejecta Tu. Fr. — Tu. Fr. Spitsb. p. 50. — Spitsb. — 
On stone. 
Verrucaria rupestris Scarapv. — Tu. Fr. Arct. p. 271. — Greenl., 
Spitsb., Icel. — On stone. 
Verrucaria striatula Wnec.— Tu. Fr. Arct. p. 267. — Spitsb. — 
On stone. 
Verrucaria umbrina Acu. — Letcut. Ang. p. 52.— Greenl.— On 
stone. 
Polyblastia Mass. 
Polyblastia bryophila Lonnr. — Tu. Fr. Poly. p. 18.— Am., Spitsb. 
—Over moss and earth. 
Polyblastia gelatinosa (Aca.) Ta. Fr. — Tu. Fr. Poly, p. 17. — 
Spitsb. — Over dead moss. 
Polyblastia gothica Ts. Fr. — Tu. Fr. Poly. p. 25.—Spitsb. — Over 
dead moss. 
Polyblastia helvetica Ta. Fr.— Tx. Fr. Spitsb. p. 48. — Spitsb. — 
Over moss. 
